Fractal Design builds awesome cases, very decent fans,..... and that's where the list about stops. Unfortunately their psu's are not that good, because they don't actually build them. FD psus are built by FSP group and ATNG, both of which build lower tier units. In general. That specific unit is not too shabby, but there are better units for less.
http://pcpartpicker.com/part/evga-power-supply-120g21000xr
Best 1000w unit on the market.
Try wiki for an explanation on the 80+ ratings. The difference between platinum and gold is not really worth any consideration.